Chemistry

Question One

Lead chloride dissolves in water according to

PbCl2(s)<-> Pb^2+ + 2Cl^- (aq)

The solubility in pure water has been measured to be 4.44g . L^-1 . Calculate the solubility product of lead chloride in pure water. Your answer should be in units of molarity raised to the appropriate exponent.


Question Two

Would you expect the solubility of PbCl2 in water to change dramatically if it were to be dissolved into a solution of 3.091x10^-4 M KCl?
i)Yes, the solubility of PbCl2 would decrease dramatically.
ii)Yes, the solubility of PbCl2 would increase dramatically.
iii)No, the solubility of PbCl2 would remain roughly unchanged.

  1. 👍 0
  2. 👎 0
  3. 👁 456
asked by Odesa
  1. ..........PbCl2 ==> Pb^2+ + 2Cl^-
    Ksp = (Pb^2+)(Cl^-)^2
    (Pb^2+) = 4.44g/L, convert to mol Pb^2+ and substitute into Ksp. (Cl^-) will be twice that. Solve for Ksp.
    The solubility will decrease dramatically BECAUSE of the common ion effect. You are adding Cl^- from KCl and the solubility equilibrium shown above will be shifted to the left.

    1. 👍 0
    2. 👎 0
  2. Question One
    1.7e-5

    Question Two (There is a bug in the grader!!! this is the right but the grader mark it as incorrect!!!)

    i)Yes, the solubility of PbCl2 would decrease dramatically.

    1. 👍 0
    2. 👎 0
    posted by qwerty
  3. Thank you

    1. 👍 0
    2. 👎 0
    posted by Odesa
  4. Had wrong for question two with I

    1. 👍 0
    2. 👎 0
    posted by Ling
  5. The density of maple syrup is 1.33g/mL. a bottle of maple Syrup contains 740mL of syrup. What is the mass of maple syrup?

    1. 👍 0
    2. 👎 0
  6. if you want that question answered, post it separately.

    1. 👍 0
    2. 👎 0
    posted by Anon
  7. No, the solubility of PbCl2 would remain roughly unchanged.

    1. 👍 0
    2. 👎 0
    posted by Anon
  8. he solubility of PbCl2 would remain roughly unchanged.
    right

    1. 👍 0
    2. 👎 0
    posted by DDD

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Lead chloride dissolves in water according to PbCl2(s)↔Pb2++2Cl−(aq) The solubility in pure water has been measured to be 4.44 g⋅L−1. Calculate the solubility product of lead chloride in pure water. Your answer should be

    asked by User on December 17, 2012
  2. chemistry

    Lead chloride dissolves in water according to PbCl2(s)↔Pb2++2Cl−(aq) The solubility in pure water has been measured to be 4.44 g⋅L−1. Calculate the solubility product of lead chloride in pure water. Your answer should be

    asked by anita on December 17, 2012
  3. chemistry

    Lead chloride dissolves in water according to PbCl2(s)↔Pb2++2Cl−(aq) The solubility in pure water has been measured to be 4.44 g⋅L−1. Calculate the solubility product of lead chloride in pure water. Your answer should be

    asked by eee on December 19, 2012
  4. science

    In an experiment to determine the solubility of lead chloride (PbCl2), 5.6g of (NH4)2SO4 was added to a 250ml solution containing an unknown amount of dissolved lead chloride (PbCl2) resulting in the formation of Lead sulfate

    asked by nelo on July 27, 2014
  5. chem

    the solubility of lead(II) chloride, PbCl2, in water at 20 degrees Celcius is 1.00 g PbCl2/100 g of water. if you stirred 7.50 g PbCl2 in 400 g of water at 20 degrees Celcius, what mass of lead (II) chloride would remain

    asked by kelseyyy on July 8, 2010
  6. Chemistry

    The solubility of lead (II) chloride in water is 4.50 g/L at 25 degrees C a. What is the molarity of Pb2+ in a saturated solution b. What is the molarity of Cl- in the solution in the previous problem c. What is the equilibrium

    asked by sea lively on August 13, 2018
  7. chemistry

    The solubility of lead (II) chloride (PbCl2) is 1.6 x 10^-2 M. What is the Ksp of PbCl2?

    asked by jack on November 22, 2010
  8. Chemistry

    We performed a lab in class about a month ago concerning different types of equilibrium. One particular portion of the lab adding 5 mL of .3M HCl to 5 mL of .3 M Pb(NO3)2. After a precipitate finally formed, 8 mL of water was

    asked by Kim on May 28, 2007
  9. chemistry

    Would you expect the solubility of PbCl2 in water to change dramatically if it were to be dissolved into a solution of 3.091×10−4 M KCl? Yes, the solubility of PbCl2 would decrease dramatically. Yes, the solubility of PbCl2

    asked by ssss on May 4, 2013
  10. Chemistry

    Zn + PbCl2 --> ZnCl2 + Pb The initial mass of a zinc strip is 2.684. After being left overnight in a lead (II) chloride solution, the mass of zinc is 2.581g. Calculate the Ksp of lead (II) chloride. So far I have: PbCl2 -->

    asked by Raj on May 23, 2007

More Similar Questions